THE MONTHLY BULLETIN 



CALIFORNIA STATE COMMISSION OF HORTICULTURE. 



DEVOTED TO HORTICULTURE IN ITS BROADEST SENSE, WITH SPECIAL 



REFERENCE TO PLANT DISEASES, INSECT PESTS, AND 



THEIR CONTROL. 



Sent free to all citizens of the State of California. Offered in exchange for bulletins 

 of the Federal Government and experiment stations, entomological and mycological 

 journals, agricultural and horticultural papers, botanical and other publications of a 

 similar nature. 



G. H. Hecke. State Commissioner of Horticulture Censor 



Geo. P. Weldon, Chief Deputy Commissioner Editor 



Associate Editors. 



H. S. Maddox Secretary State Commission of Horticulture 



Harry S. Smith Superintendent State Insectary 



Frederick Maskew Chief Deputy Quarantine Officer 



O. W. Newman Assistant Secretary State Commission of Horticulture 



Entered as second class matter December 29, 1911, at the post office at Sacramento, 

 California, under the act of June 6, 1900. 



The Monthly Bulletin. — T am much gratified at the numerous warm 

 expressions of approval concerning the contents of the comhination num- 

 ber three and four of the Monthly Bulletin, and. indeed, much care was 

 given by the editor and his associates to the .selection of its material. 

 The following number is merely a delayed report of the forty-ninth 

 fruit growers convention held at Napa. Unfortunately, our printing 

 fund did not permit an earlier issue. The number now before our 

 readers is modest, but contains much that will prove to be of value to 

 the commissioners and to the fruit interests. We expect, however. 

 to present our readers with an especially good, well illustrated, and 

 interesting issue in the next number, to be designated as The Special 

 Quarantine Number. Some of the writers and their topics are as 

 follows : 



Prof. Wilmon Newell. Florida Plant Commissioner; Citrus Canker. 

 Dr. E. P. Meineeke, Forest Pathologist, United States Department 



of Agriculture. San Francisco; Chestnut Bark Disease and White 



Pine Blister Rust. 

 Mr. W. D. Pierce of the Bureau of Entomology, United States 



Department of Agriculture, Washington, D. ('.: Cotton-Boll 



Weevil. 

 Prof. J. B. S. Norton of the Maryland Agricultural College; Peach 



Yellows and Peach Rosette. 

 Prof. H. S. Fawcett : Melanose. 

 There will also be articles by Mr. Frederick .Maskew on fruit flies 



and by Mr. II. S. Smith on alfalfa weevil. 



In view of the extra vigilance that must be exercised, during these 

 trying times, to protect the plant life of California I thought it advis- 

 able to devote the entire issue to the description of the principal pests 

 against which we quarantine. This will give our readers a better idea 

 of the life histories and habits of the plant enemies we are endeavoring 



